In reaction to Zika, echoes of polio

Parallels can be seen in the panic, prejudices and responses to a virus

BY DONALD G. MCNEIL JR.HEALTH + SCIENCE

Exactly 100 years ago this summer, New York City was hit by one of the worst epidemics it had ever seen: the first explosive American outbreak of infantile paralysis — a disease later known as polio.
It was a mystifying, terrifying illness. Most...